LUPULINUM. 



8i 



in amount. Contamination is very common and can 

 easily be detected. 



Chemistry. — Lupulinum contains wax, 2 per cent, ethe- 



O 



(B o ^ 



of 



O © 



o # o 



Fig. 9. — Lycopodium. 



5. Lycopodium, adulterated with />, pollen of corylus; pp, pine pollen; 



a, wheat starch. 



» 



real oil, 3 per cent, glucose, and o.i per cent, of resin and 

 bitter substance. Two alkaloids have been described. 



6 



